Winding machine



Aug. 31, 1937. J. E'. AUTEN WINDING MACHINE Filed Feb. 1a, 1935 4sheets-sheet 2 wlllllllllll f `91113.31, 1937. J E AUTEN A 2,091,992

* WINDING MACHINE Filed Feb. 18, 1935A 4 Sheets-Sheet 3 Aug. 3 1, 1937.J.. E. AUTEN f 2,091,902

' WINDING MACHINE A Filed Feb. 1a', 19,35 4 sheets-sheet 4,-

Patented ug. 3l, 1937 UNITED STATES PATENT OFFICE W'lNDING MACHINEApplication February 18. 1935, Serial No. V'1,100

12 Claims.

This invention relates to winding machines for winding cops, cones,cheeses and other forms of packages'of thread, yarn, cord and similarstrand material, hereinafter referred to generally by the term "yarn;and'. particularly to winding machines wherein the package is rotated bycontact with a drive-roll or drum. Specifically, the invention consistsof a ribbonbreaker, sc-called, which operates to control the dispositionof the turns or coils of yarn on themeans at recurring cycles throughoutthe 25 winding- Another object oi the invention is to provide a machineof the type indicated with mechanism driven from a constant speed sourcewhich is operable to intermittently change Vthe ratio be 30 tween theconstant speed source and either the package-rotating means or theyam-traversing means.

Another object of the present invention is to provide a winding machineof the type indicatedv 35 having an expansible and contractiblebeltdriven pulley in the driving mechanismwhich is intermittently andpositively actuated into conl tracted relationship to vary the diameterof its periphery engaged by the beit. l

40 Another object of the invention is to provide a mechanism of the typeindicated which is ccmpletely automatic in its operation and adjustyable to meet all requirements. I

Further objects of the invention are indicated 45 in the followingspecication which describes a.

preferred form of construction of the device, by

way of example. as illustrated by the accompanylng drawings. In thedrawings:

Fig. 1 is a side elevational view of a winding "5 machine incorporatingthe novel features -ot the present invention andv showing the drivingmechanism and the winding elements of one unit of the machine: Fig. 2 isan end elevational view of thema- 55 emne illustrated in Fig. 1 showingme driving (Cl. 'i4-21.7)

belt connecting the expansible pulley with the source of power;

Fig. 3 is a view similar to Fig. 2 showing the expansible pulley partlyin section to illustrate the manner in which the driving belt ,engages 5its periphery at a point nearer itsl axis;

Fig. 4 is a longitudinal sectional view of the expansible pulley and itsoperating means taken on line 4 4 of Fig. 2 and showing the sections ofthe pulley in closed relationship; 10

Fig. 5 is a sectional view similar to Fig. 4 taken on line 5--5 of Fig.3 and showing the sections of the pulley in open relationship; Fig. 6 isa part-sectional view of the expansible pulley and its operating -meanstaken on line 6-6 of Fig. 4; and

Fig. '1 is a sectional view of the actuating cam for thepulley-operating arm taken on line l-I of Fig. 5 and showing the rangeof movement imparted to the follower-roller to actuate the arm.

The present invention relates generally to means for causingacceleration'- and deceleration. in the speed of one ot the. windingelements of' the machine, torexample, the drive-roll tor rotating thepackage; or, in other instances, it may be applied Vto the drive lor theyarn-traversing means when the latter is operated independently of .thedrive-roll. A More specifically the invention relates to a drivingmechanism betweenv the prime-mover and the package-rotating meansincluding a belt-driven expansible' and cqntractlble pulley whichisautomatically operated to vary the diametex' of the periphery engagedbythe belt. 35

The invention also provides an intermittently operating -means from thedriving mechanism and directly engaging the expansible and contractibiepulley to positively actuate the latter to alter itsdiameter engagedbythe belt 40 whereby to vary the speed ratio between its con- .etantspeed-source and the package-rotating means.

Referringtothe drawings, the winding machine herein iilustrated by wayof example is Aci? the double zang type comprising a pluralityof'winding units arranged in sexies along the opposite sides of vahorizontal 'frame or bed 2 which .is `at its ndaby legs I. -Spaced alongthe top of the bed 2 are a series of-brackets l 50 which mount bearingsfor the drivinz shafts and other parts oi' the winding mechanisms,V twoopposite units being located .between each pair of brackets but only oneunitibeingherein shown.

In the 'construction ci' the machine as shown 55 v in Fig. 1 the windingmechanism .of each unit comprises only two principal elements, namely:the winding-mandrel or spindle I5 on which the yam-receiver or cop-tubeC is rotatably support- 5 ed; and the drive-roll I 0 for rotating theyarnreceiver and in which is embodied the means for traversing the yarnback and forth axially of the. package being wound. In this form ofconstruction the usual` reciprocating thread-guide is dispensed with,the drive-roll having" its peripheral l surface provided with a helicalgroove or grooves 8 and S extending in opposite directions and adaptedto receive the strand of yarn to guide it back and forth between theends of the package. This particular form of traversing means is shownand described in U. S. Letters Patent No. 1,749,355, dated March 4,1930. It 1s to be understood, however, that the present ribbon-breakeror speedchanging device is adapted for use on winding machines of othertypes, for example,. those wherein the package is driven by contact witha drive-roll and the yarn traversed by means of a reciprocating guide 0rwith any other arrangement of drum-driven winders.

In the form of construction shown in Fig. 1 the drive-rolls l 0 aremounted on and rotatedv by a horizontal shaft II journaled in ballbearings I2 on the bracket 4; the shaft II being extended throughout thewhole length of the gang machine to carry the 'drive-rolls for anydesired number of winding units. A second parallel shaft I3, alsojournaled in bearings on the bracket I, carries the drive-rolls, notherein shown, for, the other series of winding.' units arranged on theopposite side of the winding frame or at the righthand side as viewed inFig. 2.

I'he present machine is shown as adapted for winding packages of conicalformwith the yarn built up on a suitable axial corejor receiver, a

40 wooden or ber conical cop-tube C being illustrated in 1"ig. 1 asmounted to rotate on the winding-spindle or mandrel I5. "Thewindingspindle I5 is of usual construction' and mounted in the mannerillustrated inlthe patent referred:

to above. Suiijice it to state herein that the winding-spindle I5 isswiveled to the forward end of a weighted arm I5 which is pivotallysupported at its rearward end to adapt surface of the Ayarn-receiver C.and of -thepackage P, to be held in contact with the peripheryfof thedriveroll I0. Asvthe yarn is built up on the coptube C it forces thelatteupwardiy with. the um I6 swinging o n itspivot lin the 'mannercommon to machines of the'present type. Although not 55 herein shown, a,suitable stopping mechanism is usually employed with each unit ofthemachineto automatically arrest the winding operation' by.

raising the package away from the drive-roll Il.

The driving. transmission for the drive-roll 'A 6o shafts is similar tothat-shown'and'described in my copending application, Serial No.741,012,

filed August 22, 1934', .and is therefore' described butrbriefly herein.Bolted to the" top of the-bed 2 are apair of spaced brackets orcross-'frames '55 2l and 2l for supporting. the' 'ends of theV driverollshafts Hand I3 andthe driving` transmission therefor. The drive-rollshaft II projects 'beyond the bearingi! in the bracket l with itsreduced extremity!! iournaled in a ball bearing 70 25 on the framelll,vas indicated generally in'Fig. 1. A belt-pulley 3l is keyed at 2l tothe reduced end 22 of the shaft Il and held against dial movement by anut 2". The periphery of the pulley 30 is provided with a V-shaped'groove 21 15 for receiving a driving belt as 'I'he opposite drive-rollshaft I3 is somewhat longer than the shaft I I with its reduced endprojecting through a clearance opening in the frame member 20 andjournaled in a ball bearing 32 in the frame member 2|. .Mounted fast onthe re- 5 duced end of the shaft I3 is a pulley 35 of the same form andsize as the pulley 30 previously described. The pulley 3 5 is suitablykeyed to the shaft I3 and held against axial movement by a nut 3|, asshown in Fig. 2. 10

Arranged forvertical adjustment on the facing sides of the cross-frames2D and 2| are two complementary brackets 31 and 38 received in groovesor guideways on the frames and held in adjusted position by means ofdisks 40 eccentrically mount- 15 ed on a stud-shaft l2, see Fig. 2. Theends 4| of the shaft 42 project through bearing apertures in thecross-frames 20 and 2| with nuts 43 screwed onto their threadedextremities and set up against the sides of the frames to Vhold theshaft from 20 turning. The vperipheries of the eccentric disks 40 engagethe opposite -sides of horizontal slots 45 formed in the brackets 31 and38 as shown in Fig. 2.

An enclosing housing or cradle 50 mounted be- 25 tween the cross-frames20 and 2l carries the driving transmission for the drive-shafts I I andI3. The housing 5D is suspended between the brackets 31 and 38 on arock-shaft 52 passing through bearing sleeves 53 and 54 in the end wallsand ex- 30 tending into bearing apertures and 56 in the brackets. Therearward end Blof the rock-shaft 52 extends beyond the cross-frame ZI asshown in Fig. 1 for connection with the means for actuating thespeed-changing vmechanism on the driv- 35 ing shaft to be laterdescribed.

The housing 50 is prevented from movement about the rock-shaft 52 byarms 58 and .59 engaging the 'sides of the housing. The arms 58 and 53'are slidably mounted on the machine bed '40 V2 at opposite sides of thehousing 5I!- andare adjusted into engagement with vthe-v walls of thehousing 5 0 by means of screws Eiland 8i carried in depending webs onthe arms and engaging the sides ofthe b'ed. The arms-58,;and 59 areheld-45 against the top of the bed 2 by bolts 62 passing .through slotsin their ends,' see Fig- L The housing. may be vertically adjustedto'any desired position with respect to the cross-'frames 2l and 2l byrotatingtheccentric disks' Il)l onao the Stud-Shaft l2.

A pair of driving shafts. and 55 are journaled in bearings in theliousing'5ilxin spaced parallel relation below the rock-shaft '52. Asshownin Fig. 1. thedrive-shaft M isjoummed in bearings 55"A and ontheopposite end walls of the housing 5l with its forwardend extendingbeyond .the housingr'to .receive a. pulley 53- keyed j thereto, andvheld axially positioned thereon by a nut 10. The

periphery or the. pulley sa is provided. with axeo V-shapedgroovein-alinement with the groove -21 on the pulley 30, previously mentioned,and the 'two pulleys are connected by an endlessbelt 1I- extendingtherebetween'. opposite end of 'the shaft M terminates inthe bearing-,51in the'' end wallof thehousing'i, andadiacent the hearing a spur-gear'I2 is fixed on the shaft. The shaftv isalso provided 4with a.- worm 13intermediate its. ends and withinthe housing 53.

- 'mesma is 1s simuarly :carnales in'smtabl''m" bearings in the endwalls ofthe housing' 5 0 with itsrearward end extending outwardly fromthe h'ousingtc receive a' driven expansiblepulley 15,

'hereinafter more fullydescribed. and a driving slieave-type pulley I6keyed 'to the shaft and. 'Illv held ln axial position by anut 11. 'Ihepulley -16 is aimed with the pulley 35 on the shaft I3 and the twopulleysV are connected by a V-shaped belt 18. Within the housing 50 is aspur-gear 5' 19 fixedly mounted on the shaft 65 for rotation therewithand intermeshingwlth the gear 12 on the shaft 64 to connect the twoshafts to be driven together;

A cam-shaft 80 is suitably journaledinbearings 8| and 82 in the sidewalls of the housing 50 and is provided with a suitable worm-wheel orgear 83 engaging the worml 13 on the driving shaft 64. .A cam 86 fixedto the shaft 80 intermediate its ends has a helical groove 81 for en- 5gaging a follower-roller 88 on a rocker-arm 89" As most flxedlyconnected to the r'ockshaft 52. clearly shown in Fig. 1, the rocker-arm89 depends from a hub 90 keyed to the shaft 52 and held against axialmovement by a set-screw 9|. With 20 the construction described thecam-shaft 80 is 25 shaft 52 maybe continuously rocked between itsextreme alternate positions or may be intermittently actuated inaccordance with the contour of the cam-groove 81` which may be variedfrom the form shown in the drawings.

An electric motor 95 for driving the shaft 65 is mounted on a suitablepedestal 96 adjustably supported from a base 91 by means vof studs 98and adjusting nuts 99. The motor 95'isposi tioned below the bed at therearward or righthand end of the winding machine, as viewed in Fig. 2,and in driving relation to the shaft 65. Mounted on the armature-shaft|00 of the motor 95 is a driving pulley |0| disposed in alinement with.the pulley 15, the two pulleys being con- 40 nected by a V-shaped belt|02.

45 to cause a slippage between the package and drive-roll and a changein the ratio of packageperipheral speed to traverse' thereon, or, inIother "words, to interrupt the synchronism between the .rotation of, thepackage and the traverse of the 50 yarn. Broadly, the inventioncontemplates periodically altering the speed ratio of the. driving anddriven pulleys on the motor and driving shaft, respectively, bymechanically actuating and positively altering the effective diameter of55 the periphery of the driven pulley engaged by the driving belt.

4Referring now to Figs. 4 and 5, the pulley 15 is shown inthe form of asheave having a groove for receiving a V-belt and comprised of cooperat-O ing sections |05and |06 which are relatively displaceable to vary thewidthof the groove so that the belt may engage the pulley at peripheriesof different diameters. In the preferred form illustrated, the section|05 comprises a cylindrical sleeve or hub |01 having a radiallyextending flange |08 integral therewith and fixed with respect to theelementv |06.v The pulleysection |05 is keyed to the shaft 65 at |09 andheld lagainst axial movement at one end by an oilretaining ring ||0abutting the end of the bearing 61 in the housing 50;' and by theabutting hub on. the pulley 16 at the other end. The inner face of theflange |08 has a plane surface |I2 extending outwardly from the hub |01with 75 a conical surface ||3 adjacent the periphery of the flange toform one-half of the V-shaped groove.

'Ihe pulley-section |06 is adapted for lateral movement with respect tothe section |05, being formed with a hub ||5 embracing the cylindricalsleeve |01 and an integral flange ||6 having a plane surface I1 and anouter conical surface I8 for cooperation with the flange |08 `to formthe groove for receiving a V-shaped belt. The laterally movable section|06 is slidably mounted on the cylindrical sleeve |01 of the section |05but is prevented from rotation relatively thereof by a key |20 engagingal keyway formed in the two elements. The section |06v is adapted to beengaged and laterally moved with respect to the section |05` and forthis purpose a bearing flange |2| is mounted on the hub ||5. To preventexcessive wear a ball-bearing |22 is provided between the bearing flange|2| and the hub ||5. The inner race I9 of the bearing'i 22 is fitted toan annular shouldered seat on the hub ||5 and heldin place by a nut |25screwed on the threaded end of the hub; while the outer race |20 isforced into a recess in the offset hub ofthe flange. When in itsassembled relationship, as shown in Figs. 4 andlating lever 25 whichdirectly engages the bearing flange |2|. The lever |25 comprises apivoted hub portion 26 having a depending bifurcated shifting fork |21and an upwardly projecting follower-arm |28. The lever |25 is rockablymounted on a pin |29v extending through a bearing in its hub |26 withits ends xedly held in dependi'ng webs |3| on the bracket 38. As moreclearly 4shown in Fig. 6, the bifurcated shifting fork |21 v comprisesarms |32 and |33 of semicircuiar shape extending from the hub |26 tostraddle the sides of the hub of the bearing flange |2|. 'I'he arms v|32and |33 terminate in rounded extremities |34 for engaging the flange |2|on opposite sides of the shaft 65. The follower-arm |28 of thelever ofthe bearing roller 35 with an oscillating cam The cam |40 isconstructedV in the form of a collar |4| fixed to the extension 5l oftherocksha-ft 52, previously mentioned, by means of setscrews |42 andhaving a depending arm |43 extending inwardly with a beveled face |44 atits end adapted Yto engage the convex periphery of the roller |35 onthe. lever,|25. The end face |44 of the arm |43 is inclined at an angleto the pivotal axis of the lever |25 to form a cam slidably engaging theroller |35 to move it between the positions indicated at a and b in Fig.7 as the rockshaft 52 oscillates from one extreme position to the other.This motion of the roller |35 is trans.- mitted through the lever 25 tocause its fork |21 to axially shift the pulley-section |06 relatively ofwooden or cone-tube or yarn-receiver C to rotate on the spindle I5. Forthis purpose the arm I6 is raised on itspivot' and the spindle i5 swungoutwardly on its swiveled joint at the outer 5 end of the arm inaccordance with the usual practice. After the cop-tube C is in place thespindlel .l5 is swung back into position above the driveroll I and thearm I6 lowered'to bring the surface of the tube into driving Contactwith the l0 periphery ofthe roll.

',I'he strand of yarn y or other material is led up from its source ofsupply through a tension-device, not herein illustrated, thence drawnacross the periphery of the drivey roll Il! and its end attached to thecop-tube C l in any suitable manner.

'Ihe housing 5|| carrying the driving transmission is adjustedvertically to properly tension the belts 1l and 1B by loosening the nuts43 on the ends of the stud-shaft 42, which allows the entire assembly ofhousing 50, rock-shaft 52 and brackets 31 and 38 to move downwardly. TheWeight of the assembly is such as to properly tension the belts byadjusting the housing 5I! to its operative position on the rock-shaft52. Ihe nuts I3 are then tightened in position and the arms 58 and 59adjusted by means of the screws 60 and 6| to engage and rigidly hold thehousing against lateral movement.

' The operation of the machine is started by closing a circuit breakeror switch (not herein shown) to energize the motor windings from asourceof current. The motor 95 drives the shaft 65 in a counterclockwisedirection through its belt connection with the expansible pulley 15 andthe 5 shaft 64, in turn, is driven by the intermeshing gears 12 and 19in a clockwise direction. vIhe shaft Il carrying the drive-rolls ||l onone side of the machine is driven from the shaft 6l in a clockwisedirection by the belt .1| connecting the pulf leys 68 and 30 at theforward en'd of the housing,

as viewed in Fig. l.

Also, on the opposite side of the machine, as

more clearly shown in Fig. 2,' the shaft I3 carry-X ing a similar'series of drive-rolls is driven directly from the driving shaft 6.5through the belt 1li` connecting the pulleys 16 and 35. From the aboveexplanation it will be apparent that the two series of drive-rolls Il)on opposite sides of the machine are driven by-the motor in oppositedirections of rotation to wind packages from yarn supplied thereto inthe usual manner.

As all the winding units function in the same manner it will besuiiicient to explain the method of operation of one of them. Thedrive-roll ||I is driven continuously and as the cop-tube Cv makescontact with its periphery it isr'otated by the roll to wind on theyarn. As the yarn is taken up by the rotation of the cop-tube Cthe'strand y enters the helical groove or grooves y B0 8 and 8 on theperiphery of the rollv Il) to be traversed thereby to deposit it on thereceiver .`in helical coils which make several turns first in onedirection and' then in the opposite direction. In this way the yarn isgiven a continuous traverse from one end ofthe cop-tube to the votherand back again to build up a succession vof courses forming overlyinglayers whichconstitute the yarn body of package.

At -the start of the winding the rotative speed ofthe cop-tube C willhave a certainratio to that oi the drive-roll Il depending upon theirrespective diameters and the yarn will be laid from end to end oi thetube with a corresponding ratio in the number of coilsv to the number ofturns inthe groove or grooves 8 and As `:Lompocy on the surface of thepackage.

the yam bauds up on the oop-tube c the latter recedes from thedrive-roll III and with the in-` l crease in diameter of the yarn massits angular velocity or speed of rotation is gradually lessened,

due to the increasing disparity between its diameter and that ofthevdrive-roll. In other words,

riation in the number of turns laid on the surfacev of the package, orin called.

the wind as ity-isV there is a constant change Vin ratio between therotative speed of the package and drive-roll and, consequently, therewill be a corresponding va- At the start of the winding the yam nous maybe laid in "open or spaced relationship, but when the "wind changesthespacing between the turns is lessened and the coils gradually vcloseup and eventually tend to crowd together 'Ihis crowding or piling inbands or-ribbons. of the yarn coils takes place each time the windchanges from: a greater toa lesser number of even turns and ordinarilycauses a ribbon wind When several coils are laid over each other in theribbon they tend to slip and slide out of place and roll on the surfaceof the package. This disturbs Yis the twist of the yarn and tends toweaken it Aso that its quality is impaired and, as another seriousdefect, the ribbon prevents the'yarn from delivering freely lwhen it isdrawn oif over the end of the package. The present invention operates toovercome this 'defect of ribbon wind in drum-wound packages byperiodically varying the ratiov between the vrotation of the package andthe traverse of the 'yarn to disrupt the synchronism thereof. i

To this end. the driving sha-ft' 6l operates f through the worm 13 andworm-wheel 83 to rotate the cam Bliwhereby to oscillate the rockshaft52'from its follower arm connection with the cam-groove 81. As therock-shaft extension 51 and its depending cam |40 oscillates from itsextreme forward to extreme rearward positions the lever |25 is rocked ina plane at right-angles to the plane of movement of the cam through theengagement Aof the roller |35 'with the cam-face |44. Due -to thepivotal mounting of the lever |25 intermediate its ends and the directengagement of its shifting fork |21 with the bearing flange vI2I on themovable section |05 of the expansible pulley 15', the oscillatorymovement of the rockshaft 52 is' converted into a positively-actuatedsliding movement of they pulley-section |06 to shift it toward thesection |05.

When the cam MII on the rock-shaft extension 51 is movedto vthe extremeposition shown in full Vlines in Fig. '7, the'pulley-section A|06 ismoved toits closed position by the direct engagement oi the extremities|34 of the shifting fork |21 with the bearing ange |2| as shown in Figs.2

and 4. With the sections of the pulley 15 closed together in this mannerthediameter of its periphery engaged by the belt |02 is at a maximumand, since the diameter oi the pulley I|l| on the driving motor shaftremainsk constant, the ratio of the driving and'driven elements is suchthat the driving shaft B5 of the winding machine will be driven at itsslowest rate of.speed. With thel pulley-sections closed together in thisrelationship the belt is tensioned on both sides as shown in Fig. 2. A i

As .the driving mechanism continues its operation the rock-shaftextension 51 rocks the cam llllgto its opposite extreme position asshown in dotted lines in- Fig. '1, thereby releasing .the lever |25 topermit the section IIE ofthe pulley 15 to to separate its face Ill fromthe face Ill. Due to the beveled or conical contourof the faces HI and||0 on the two. sections |05 and |06 of the 5 pulley 15 the tension ofthe belt |02 will cause the section Y|06 to be wedged away from thesection |05 under the control of the lever |25 so that the belt willride deeper into the groove between the two pulley-sections or, in otherwords, the

l belt will engage the pulley at a lesser circum- 'ference on itsperiphery. The engagement of the roller |35 on the lever |25 with thecamface I and the engagement of the shifting forlr- 25. until with theparts in the position shown in Figs. f

3 and 5, the driving shaft 55 will be driven at a maximum rate of speed.The tension of the driving belt `|02 on the pulley 15 is maintained`substantially constant due to centrifugal for-ce 80 which throws thebelt outwardly on its relatively slack side, asA shown in Fig. 3, andinsures engagement with the pulley at the deepest possible force en thebelt is. due to its linear velocity and 55 change ofdirection in passingover the p ulley as well understood inthe art.

The constant change or periodic acceleration and deceleration in thespeed of the driving shaft |i5 is transmitted to both of the drive-rollshafts 401| and I3 and the variation in the speed of the drive-rolls hasthe effect to periodically vary the rate of traverse of the'yarnfollowing the helical grooves on the rolls.

45 decelerationand acceleration of the drive-roll, respectively, thepackage will slip or skid on the periphery of `the roll and, as a resultthereof,

, the synchrony of winding speed to yarn traverse is disrupted atfrequent intervals to prevent rib- 50 bon winding. 'I'he rock-shaft 52is oscillated through its connection with the shaft M at a greatlyreduced rate of speed and in the embodiment of the invention.hereln'illustrated it is continuously rocked between extreme posi- 55tions. If desired, however, the rate at which the rock-shaft 52 isactuated may be varied over a considerable range and the form of the cam06 may be changed from that illustrated to transmit a different periodicmotion to the rock-shaft.

00` It has been demonstrated that if the rock-shaftl is continuouslyoperated at the rate of forty cycles per minute while the driving shaftE5 rotates the drive-rolls |0 to wind 720 yards of yarn per minuteribbon winding will be prevented. Itv 65 is' t'o be understood, however,that the rate of cyclic change inthe speed of the driving elementsmachine for preventing the formation of rib-I bons" in the windingbypositivelyr varying the speed ratio between the driving and driven elez5ments through the use of a laterally expansible As the sections |05and'l05 of thel position in the groove. 'Ihis action of centrifugal Onthe other hand, due to the momentum and inertia of the package duringpulley directly actuated tu positively control and vary the diameter ofthe periphery engaged by a belt.

It will also be apparent to one skilled ln the art that the novelfeatures of the present invention Imay have a variety'o'f mechanicalexpressions other than those illustrated and described. Further, it will'be apparent that the ribbonbreaker -mechanism may be applied to othertypes of winding machines and that other forms of actuating lmechanismdirectly engaging and 'positively actuating the laterally expansiblepullcy may be substituted for that herein shown. Therefore, withoutlimiting myself in this respect, I claim:

1. In a windingmachine, a driving motor, a driving shaft, sheave-typepulleyson said motor shaft, a belt connecting the pulleys, one of 'saidpulleys comprising llaterally adjustable sections, means directlyengaging one of the sections of the pulley to move it laterally withrespect to the other section, means for intermittently actuating theadjusting means to cause the belt to engage the pulley at differentdiameters on its periphery to vary the speed of the driving shaft, andmeans for continuously operating said actuating means.`

2. Ina windingmachine, a driving motor, a driving shaft, a sectionalpulley on the driving shaft having one of itssections axially movable, abeltconnecting the motor iand pulley, a shifting fork engaging themovable section of the pulley, van oscillating cam for actuating theshifting forkto intermittently alter the diameter of the pulley engagedbythe belt whereby to vary the speed of the driving shaft, and means foroscillating the cam.

\3. In a winding machine, -a driving motor, a driving shaft, arock-shaft operatively connected with the driving shaft, a sectionalpulleyv on. the driving shaft having onesection axially movable, a beltconnecting the motor and the pulley4 on the driving shaft, a pivotedlever having a shifting fork engaging the movable section of thepulley,a cam on the rock-shaft for actuating the lever to intermittentlyalter the diameter of the periphery of the pulley engaged by the belt tovary the vspeed of the driving shaft, and means foractuating the cam.

4. In a winding machine, a driving shaftyflan expansible pulley on thedriving shaft for-#ary- 'the pulley, and means for intermittentlyoperating said actuating means. v

5.- In a winding machine, a driving shaft, an expansible pulley on thedriving shaft for varying its Vrotative speed comprising a section fixedto the shaft and a cooperating section slidably mounted on the shaft, a,shifting fork for actuating the sliding section, and means actuated bythe driving shaft for moving the shifting fork to actuate the slidingsection to vary the effective diameter of the pulley.

6. In a winding machine, a' driving shaft, a`

sectional expansible .pulley on the driving shaft having one sectionmovable for varying the rotative speed of the driving shaft, a shiftingfork engagingthe movable section of the pulley, a rock-shaft driven bythe driving shaft, a cam on the rock-shaft engaging the shifting fork tointermittently actuate the movable section to -closethe pulley to-alterits e'ective diameter. and means for actuating the cam. V a

'1. In a winding machine, a driving shaft, a driven shaft, Lsaid shaftsbeing journaledf to ro- 5 tate about iixed axes, pulleys on said shafts,a belt connecting the pulleys, one of said pulleys being expansible toalter the diameter of its periphe'ry engaged by the belt, mechanicalmeans operating on-the expansible pulley to positively 10 alter thediameter of its periphery engaged by the belt, and means forintermittently actuating the pulley-operating means to alternatelyincrease and decrease the speed f the shaft driven by the pulley. 15 8.In a winding machine,` a driving shaft, a l driven shaft, said shaftsbeing journaled to rotate about fixed axes, pulleys on said shafts, abelt connecting the pulleys, one of said pulleys being expansible toalter the diameter of its peno riphery engaged by the belt, mechanicalmeans engaging the pulley and operating to positively alter the diameterof its periphery, and means operated from one of the shafts forpositively actuating the pulley-engaging means to alternatelyI increaseand decrease the speed of the shaft driven by the pulley. l

9. Ina winding machine, a driving shaft, a-

drivenshaft, said shafts being journaled to rotate about ilxed axes,sheaf-type pulleys on said so shafts, a belt connecting the pulleys, oneof said pulleys comprising laterally adjustable sections, mechanicalmeans "r positively moving one of the sections of ti.,d pulley withrespect to'-the u other to alter the diameter of the periphery of thevpulley engagedby the belt, and means for inter-.

Ainittently actuating the pulley-operating means vCERTIFIcal'EvvPatent-Lillo'. 2,091,902.

JAMES E'.

V to alternately increase and decrease the speed of the shaft driven bythe pulley.

10. In a winding machine of the type in which' a package is rotated and`thegyarn traversedV axially thereof, the combination of an expansiblepulley for drivingvthe package, a driving belt on said Pulley,mechanical actuatngmeans operating on said pulley to positively .alterthe diameter of the pulley engaged by the belt, and means forintermittently operating the actuating means to periodically alter thespeed of the pulley.

11. In a winding machine-of the type inwhich a grooved drive-rollrotates a. package by peripheral contact therewith and'traverses theyarn longitudinally thereon, the combination of an expansible pulley fordriving the package, a driving belt on said pulley, mechanical actuatingmeans operating on the pulley to positively alter the diameter of itsperiphery' engaged by the belt, and means for intermittently operatingthe actuating means to periodically alter the speed of the expansiblepulley. Y

12. Ina winding machine o'f the type in which two series of yarnpackages are arranged in spaced parallel relationship and driven byperl'pheral contact with a series of drive-rolls while the yarn istraversed longitudinally thereof, the combination of a pulley fordriving the two series of drive-rolls, said pulley having a movableelemeans to periodically alter the speed-of the pulley.

JAMES E. AUTEN.

0F' CORRECTION t' l v August 5l, 195'?. AAUTEN.` f

It is hereby certified'that error appears in the printed specification.of-the above numbered patent requiring correction as follows: Page 5,second` column, line 18, claim 1, before the WordWeb-aft" insert and;and. that the said Letters Patent rshouldbe read with this correctiontherein" that theA same may conform to the record of the case in thef;Patent Office.

Signeiand sealed" this 19u; carer october, A.- D. 1937.

(Seal) -Henry Van Aradale. Acting Commissioner of' Patents.

-closethe pulley to-alter its e'ective diameter. and means for actuatingthe cam. V a

'1. In a winding machine, a driving shaft, a driven shaft, Lsaid shaftsbeing journaledf to ro- 5 tate about iixed axes, pulleys on said shafts,a belt connecting the pulleys, one of said pulleys being expansible toalter the diameter of its periphe'ry engaged by the belt, mechanicalmeans operating on-the expansible pulley to positively 10 alter thediameter of its periphery engaged by the belt, and means forintermittently actuating the pulley-operating means to alternatelyincrease and decrease the speed f the shaft driven by the pulley. 15 8.In a winding machine,` a driving shaft, a l driven shaft, said shaftsbeing journaled to rotate about fixed axes, pulleys on said shafts, abelt connecting the pulleys, one of said pulleys being expansible toalter the diameter of its peno riphery engaged by the belt, mechanicalmeans engaging the pulley and operating to positively alter the diameterof its periphery, and means operated from one of the shafts forpositively actuating the pulley-engaging means to alternatelyI increaseand decrease the speed of the shaft driven by the pulley. l

9. Ina winding machine, a driving shaft, a-

drivenshaft, said shafts being journaled to rotate about ilxed axes,sheaf-type pulleys on said so shafts, a belt connecting the pulleys, oneof said pulleys comprising laterally adjustable sections, mechanicalmeans "r positively moving one of the sections of ti.,d pulley withrespect to'-the u other to alter the diameter of the periphery of thevpulley engagedby the belt, and means for inter-.

Ainittently actuating the pulley-operating means vCERTIFIcal'EvvPatent-Lillo'. 2,091,902.

JAMES E'.

V to alternately increase and decrease the speed of the shaft driven bythe pulley.

10. In a winding machine of the type in which' a package is rotated and`thegyarn traversedV axially thereof, the combination of an expansiblepulley for drivingvthe package, a driving belt on said Pulley,mechanical actuatngmeans operating on said pulley to positively .alterthe diameter of the pulley engaged by the belt, and means forintermittently operating the actuating means to periodically alter thespeed of the pulley.

11. In a winding machine-of the type inwhich a grooved drive-rollrotates a. package by peripheral contact therewith and'traverses theyarn longitudinally thereon, the combination of an expansible pulley fordriving the package, a driving belt on said pulley, mechanical actuatingmeans operating on the pulley to positively alter the diameter of itsperiphery' engaged by the belt, and means for intermittently operatingthe actuating means to periodically alter the speed of the expansiblepulley. Y

12. Ina winding machine o'f the type in which two series of yarnpackages are arranged in spaced parallel relationship and driven byperl'pheral contact with a series of drive-rolls while the yarn istraversed longitudinally thereof, the combination of a pulley fordriving the two series of drive-rolls, said pulley having a movableelemeans to periodically alter the speed-of the pulley.

JAMES E. AUTEN.

0F' CORRECTION t' l v August 5l, 195'?. AAUTEN.` f

It is hereby certified'that error appears in the printed specification.of-the above numbered patent requiring correction as follows: Page 5,second` column, line 18, claim 1, before the WordWeb-aft" insert and;and. that the said Letters Patent rshouldbe read with this correctiontherein" that theA same may conform to the record of the case in thef;Patent Office.

Signeiand sealed" this 19u; carer october, A.- D. 1937.

(Seal) -Henry Van Aradale. Acting Commissioner of' Patents.

